Sash-fastener



(No Model.)

0. BENSON.

l SASH FASTENBR.

No. 310,930. Patented Jan. 20, 1885.

UNITED STATES PATENT Ormes.

OLIVER BENSON, OF HINSDALE, NEW YORK.

SASH -FASTEN ER.

SPECIFICATION forming part of Letters Patent No. 310,930, dated January210, 1885.

.Application filed July 1S, 1884.

pecially for windows where the upper sash is stationary and the lowersash only is fitted to slide, without, however-,being counterbalanced bya weight, sashes so arranged being common in many places in all sectionsof the country.

The invention will be hereinafter fully described, and specificallypointed out in the claims, reference being had totheacconipanyingdrawings, in which- Figure l represents a vertical section of a portionof a window-frame and of the whole lowervsash and part of the upper, thesliding sash being iu the lowest or closed position, and locked in thesaid position by mypresent device. Fig. 2 is a section exactly similarto Fig. 1, but showing a different Inode of applying the fastener. Fig.3 is a front or face view of the fastener itself. Fig. 4 .is an edgeview of the same, partly in section on theline x x of Fig. 3. Fig. 5 isthe face view of the washer used to keep the pivoting-screw of thefastener from turning. Fig. 6 shows the reverse side of the fastener, oras seen from the sectional line y 1/ of Fig. 4. iu the direction of thearrow 1, andshowing the manner in which the fastener is heldin aposition out of contact with the sash to prevent the raising or loweringof the latter.

A is the side ofa windowframe.

B is the upper stationary sash, and C the lower or movable sash.

D is the fastener, being formed of a stein, a., having at one endoppositely-arranged lateral projections b, which serve as the stops orcatches proper, as will presently appear, the whole forming the generalappearance of the letter T. The other end of the stem a has a hole, c,bored through it to receive the shank of the screw d, by which thefastener D is pivoted to the side frame, A, of the window in such aposition relative to the sash that the one or the other of the lateralprojections Z1 (No model.)

may be made to engage the upper edge of the sash to prevent it frombeing raised from the outside, or to engage with the lower edge of thesash t0 temporarily retain it in the raised position when desired forventilation o r other purposes; or the fastener may be swung out tobring both projections b out of contact with the sash, so as not tointerfere with the raising or lowering of the latter, as shown in thedotted position marked D in Fig. 2.

C and D" indicate, in dotted lines in Figs. l and 2, the position of thesash C and fastener D when the former is held in its raised position bythe latter.

The fastener may be arranged, as in Fig. 9, to engage the sash-frame bythe angle between the stem a and lateral arm b; but as the weight of thesash or the pressure due to an attempt at raising it in that case tendsto turn the fastener upon its pivots, and thus cause eXtra strain uponthe locking device, presently to be described` I prefer the mode ofapplying it which is shown in Fig. l, where the pressure or weight ofthe sash acts more directly against the pivot, and cannot turn thefastener out of contact.

To prevent the screw d from turning after being screwed into the frame Ato the proper depth, the shank of the said screw is Jliled down to format opposite sides fiat surfaces e, and a little plate or washer, E,provided at one edge with a slot or notch, c', suitable to embrace thethus reduced portion of the serewshank, is applied, as shown in Fig. 4,to engage the said reduced portion, and is then secured to thewindow-frame by a screw, e2.

A small spring, F, secured in a recess on the inner side ofthe fastenerD, engages,when the fastener is turned iu its upper, lower, orintermediate position, a correspondingly arranged, reduced, or iiattenedsurface, f, upon the shank in a manner which can be understood at aglance with reference to Fig. 6.

To lock the shank c and bolt D together against extra resistance in thetwo positions in which the fastener acts to support or locks the sash, Iprovide in the opposite upper and lower circumferential edge of the headofthe screw d a flattened recess, g, (shown in Figs. 3 and 4,) andarrange in ahole through the shank a, parallel with the shank ofthescrew d, a sliding bolt or knob, H, having a flattened surface, h, whichengages the one or the other ofthe aforesaid recesses g, as shown in'Figs 3 and 4.

The sliding bolt or knob H is pressed outward by a spiral spring, G. Tonnlock the fastener from the upper locked position in which it is shownin Fig. 4 and bring it into the lower locked position, it is onlynecessary to press the knob II inward untilont ot' contaot with thesurface g; then turn (by a special handle, I, or otherwise) the fastenerhalf a turn around until, by the action of the spring G, the lift hengages the lower recess, y, in the screw-head.

Itis evident that by arranging in different places upon the sash-frame acleat, stop, orangularbracket, suitable to engage theproje'ction b ofthe fastener B, the sash maybe held at different points of elevationwhen desired.

Having thus described my invention, what I olaiin as new, and drsiretosecure by Letters Patent, is

l. A sash-fastener consisting of a shank, a,

adapted to be pivoted to a window-frame, and l provided Wlth oppositelateral projections b,

arranged to engage as stops to a sliding \vin doWsash by turning thefastener uponis pivot into one or the other of two positions, ashereinbefore set forth.

2. In a sash-fastening device. the combination of the pivoted T-shapedfastener D, provided with the spring F, with the pivoting Screw d,having reduced or iiattened portions f, to engage the said spring forthe purpose of temporarily retaining` the fastener in position in or outot Contact with the sash-frame, substantially as speeied.

3. In a pivoted sash-fastener, D, the combition ot the stationarypivoting screw or stud d, havin upon its head flattened portions g, witha shank, a, having in a bored or soeketed portion adjacent to thepivoting-screw a springpressed sliding knob, II, provided with a lip orflat surface, h, arranged to engage and interlock with the saidflattened surfaces g upon the screw-head, to prevent the fastener fromturningron its pivot, as hereinbefore set forth.

at. The combination of the pivoted sash-fastener I), provided with asliding knob, H, arranged to engage and interlock with thepivoting-stud, the pivoting-screw d, having upon its shanks oppositereductions'e, and t-heplate or washer E, provided with a notch, e', toengage the reduced portion of the said shank, the said screw d and plateE being both seenrable to the saine frame, A, as and for the vpurposeshereinbefore set forth.

ln testimony that I claim the foregoing as my invention I have signed mynaine, in presence of two witnesses, this 7th day of June, 188i.

OLIVER BENS

